/*
 * Licensed to Crate.io GmbH ("Crate") under one or more contributor
 * license agreements.  See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.  Crate licenses
 * this file to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.  You may
 * obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial agreement.
 */

package io.crate.expression.symbol;

import static org.assertj.core.api.Assertions.assertThat;

import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.test.ESTestCase;
import org.junit.Test;

import io.crate.expression.scalar.cast.CastMode;
import io.crate.types.DataTypes;

public class ParameterSymbolTest extends ESTestCase {

    @Test
    public void testSerializationDefined() throws Exception {
        ParameterSymbol ps1 = new ParameterSymbol(2, DataTypes.INTEGER);

        BytesStreamOutput out = new BytesStreamOutput();
        ps1.writeTo(out);

        StreamInput in = out.bytes().streamInput();
        ParameterSymbol ps2 = new ParameterSymbol(in);

        assertThat(ps2.index()).isEqualTo(ps1.index());
        assertThat(ps2.valueType()).isEqualTo(ps1.valueType());
        assertThat(ps2.getBoundType()).isEqualTo(ps1.getBoundType());
    }

    @Test
    public void testSerializationUndefined() throws Exception {
        ParameterSymbol ps1 = new ParameterSymbol(1, DataTypes.UNDEFINED);

        BytesStreamOutput out = new BytesStreamOutput();
        ps1.writeTo(out);

        StreamInput in = out.bytes().streamInput();
        ParameterSymbol ps2 = new ParameterSymbol(in);

        assertThat(ps2.index()).isEqualTo(ps1.index());
        assertThat(ps2.valueType()).isEqualTo(ps1.valueType());
        assertThat(ps2.getBoundType()).isEqualTo(ps1.getBoundType());
    }

    @Test
    public void testCasting() {
        Symbol parameter = new ParameterSymbol(0, DataTypes.INTEGER);
        ParameterSymbol newParameter = (ParameterSymbol) parameter.cast(DataTypes.LONG, CastMode.IMPLICIT);
        assertThat(newParameter.valueType()).isEqualTo(DataTypes.LONG);
        assertThat(newParameter.index()).isEqualTo(0);
        assertThat(newParameter.getBoundType()).isEqualTo(DataTypes.INTEGER);
    }
}
